Support GestureBegin and GestureEnd in ui::GestureProvider

content/browser/renderer_host/input/web_input_event_util.cc

Index: content/browser/renderer_host/input/web_input_event_util.cc
diff --git a/content/browser/renderer_host/input/web_input_event_util.cc b/content/browser/renderer_host/input/web_input_event_util.cc
index 75e762cce9bbe95df1463fc90d8be588c19250e6..0ab6f6dda213e242fe9391ff2e927b6d0e629292 100644
--- a/content/browser/renderer_host/input/web_input_event_util.cc
+++ b/content/browser/renderer_host/input/web_input_event_util.cc
@@ -331,6 +331,10 @@ WebGestureEvent CreateWebGestureEventFromGestureEventData(
       gesture.data.tapDown.height =
           data.details.bounding_box_f().height() * scale;
       break;
+    case ui::ET_GESTURE_BEGIN:

[jdduke (slow), 2014/04/03 20:17:16]

I'd really prefer this  be NOTREACHED(), unless there are many places where Aura
calls into this method.

[tdresser, 2014/04/03 21:14:41]

Done.

+    case ui::ET_GESTURE_END:
+      gesture.type = WebInputEvent::Undefined;
+      break;
     default:
       NOTREACHED() << "ui::EventType provided wasn't a valid gesture event.";
       break;